Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (6): 1774-1788.

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Bifurcation Analysis of a Class of Gierer-Meinhardt Activation Inhibition Model with Time Delay

Ma Yani1,Yuan Hailong1,2,*()   

  1. 1School of Mathematics and Data Science, Shanxi University of Science and Technology, Xi'an 710021
    2School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049
  • Received:2022-08-08 Revised:2023-07-07 Online:2023-12-26 Published:2023-11-16
  • Supported by:
    NSFC(11901370);Natural Science Basic Research Plan in Shannxi Province(2019JQ-516);Natural Science Foundation of Shanxi Provincial Department of Education grant(19JK0142);Natural Science Foundation of China(2019M653578);Shanxi Provincial Association for Science and Technology(20200508)

Abstract:

In this paper, we consider a class of Gierer-Meinhardt activation inhibition model with time delay diffusion under homogeneous Neumann boundary conditions. Firstly, the local asymptotic stability of the positive equilibrium of the model is obtained by using spectral theory; second, choosing the time delay as the bifurcation parameter, the existence of the Hopf bifurcation of the model is analyzed; next, the formulae to determine the direction of the Hopf bifurcation and the stability of the bifurcating periodic solutions by applying the center manifold theorem and normal form theory for partial differential equation are derived; finally, numerical simulations are also carried out to simulate the Hopf bifurcation that the model go through near the critical point.

Key words: Time delay, Gierer-Meinhardt model, Hopf bifurcation, Stability, Simulation

CLC Number: 

  • O175.12
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